Id	Element	Ion	Binding family	Amino acids or nucleotide residues names	All bound residues	Is homomer	Number of bound amino acids or nucleotide residues	Number of all bound residues	Number of coordinating chains	Representative
3RJK-MG-1	MG	Mg²⁺	C1D3	ASP.DC.	6CF.ASP.DC.HOH.	✘	4	6	2	✘
3N6Q-MG-2	MG	Mg²⁺	E2	GLU.	GLU.	✔	2	2	2	✘
3N6Q-MG-3	MG	Mg²⁺	E2	GLU.	GLU.HOH.	✔	2	3	2	✘
3N6Q-MG-4	MG	Mg²⁺	E2	GLU.	GLU.HOH.	✔	2	3	2	✘
3N6Q-MG-5	MG	Mg²⁺	E2	GLU.	GLU.HOH.	✔	2	3	2	✘
3N6Q-MG-6	MG	Mg²⁺	E2	GLU.	GLU.	✔	2	2	2	✘
3N6Q-MG-7	MG	Mg²⁺	E2	GLU.	GLU.	✔	2	2	2	✘
3N6Q-MG-8	MG	Mg²⁺	E2	GLU.	GLU.	✔	2	2	2	✘
3N6Q-MG-9	MG	Mg²⁺	E2	GLU.	GLU.	✔	2	2	2	✘
3NH1-MG-2	MG	Mg²⁺	D1E1G1	ASP.DG.GLU.	ASP.DG.GLU.	✘	3	3	2	✘
3NH1-MG-3	MG	Mg²⁺	D1G2	ASP.DG.	ASP.DG.HOH.	✘	3	6	2	✘
3NH1-MG-4	MG	Mg²⁺	D1G2	ASP.DG.	ASP.DG.HOH.	✘	3	6	2	✘
3NL3-MG-3	MG	Mg²⁺	A1D1T1	ALA.ASP.THR.	ALA.ASP.THR.	✔	3	3	2	✘
3OEU-MG-1	MG	Mg²⁺	D2I1S1	ASP.ILE.SER.	ASP.HOH.ILE.SER.	✘	4	5	2	✘
3OEU-MG-2	MG	Mg²⁺	A1D2S1	ALA.ASP.SER.	ALA.ASP.HOH.SER.	✘	4	5	2	✘
3OEU-MG-3	MG	Mg²⁺	E1S2	GLU.SER.	GLU.HOH.SER.	✘	3	5	2	✘
3OEV-MG-1	MG	Mg²⁺	D2I1S1	ASP.ILE.SER.	ASP.ILE.SER.	✘	4	4	2	✘
3OEV-MG-2	MG	Mg²⁺	A1D2S1	ALA.ASP.SER.	ALA.ASP.SER.	✘	4	4	2	✘
3WZV-MG-1	MG	Mg²⁺	D2	ASP.	ASP.HOH.IPM.	✔	2	5	2	✘
3WZV-MG-2	MG	Mg²⁺	D2	ASP.	ASP.HOH.IPM.	✔	2	5	2	✘